Coffee grinder



FIG. 1 is a perspective view of the coffee grinder showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a side view thereof, the opposite side being a mirror image thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

CLAIM The ornamental design for a coffee grinder, as shown and described. 